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A novel phase-shift full-bridge converter with voltage-doubler and decoupling integrated magnetics in PV system

Y. Jiang Z. Chen J. Pan X.I. Zhao P. Lee

Bulletin of the Polish Academy of Sciences Technical Sciences | 2008 | vol. 56 | No 3 | 285-293

Keywords integrated magnetics voltage-doubler PSFB converter PV system

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Abstract

A novel phase shift full bridge (PSFB) converter with voltage-doubler and decoupling integrated magnetics in photovoltaic (PV) systems is proposed. Considering the demand that the output voltage is higher than the input voltage in PV systems, the voltage-doubler is added to achieve higher voltage gain compared with the traditional PSFB. In order to avoid current oscillation caused by the voltage-doubler and obtain the wide zero voltage switching (ZVS) ranges, an external inductor is imposed on the circuit. Especially, to obtain much higher power density, the external inductor and transformer are integrated into one magnetic core. The operation and voltage gain of proposed converter are analyzed. Also, in order to reveal the effects the integrated magnetics gives to the converter, the decoupling condition and the expression of leakage inductor of integrated magnetics are obtained in detail. Finally a 100 W prototype converter is made and the experimental results are given to verify the analysis.

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Authors and Affiliations

Y. Jiang

Z. Chen

J. Pan

X.I. Zhao

P. Lee

Modeling and simulation of stand-alone hybrid power system with fuzzy MPPT for remote load application

T. Bogaraj J. Kanakaraj J. Chelladurai

Archives of Electrical Engineering | 2015 | vol. 64 | No 3 September | 487-504 | DOI: 10.2478/aee-2015-0037

Keywords Solar PV system Wind energy conversion system Hybrid power system DC-DC converters fuzzy logic based MPPT Three phase PWM inverter

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Abstract

Many parts of remote locations in the world are not electrified even in this Advanced Technology Era. To provide electricity in such remote places renewable hybrid energy systems are very much suitable. In this paper PV/Wind/Battery Hybrid Power System (HPS) is considered to provide an economical and sustainable power to a remote load. HPS can supply the maximum power to the load at a particular operating point which is generally called as Maximum Power Point (MPP). Fuzzy Logic based MPPT (FLMPPT) control method has been implemented for both Solar and Wind Power Systems. FLMPPT control technique is implemented to generate the optimal reference voltage for the first stage of DC-DC Boost converter in both the PV and Wind energy system. The HPS is tested with variable solar irradiation, temperature, and wind speed. The FLMPPT method is compared with P&O MPPT method. The proposed method provides a good maximum power operation of the hybrid system at all operating conditions. In order to combine both sources, the DC bus voltage is made constant by employing PI Controllers for the second stage of DC-DC Buck-Boost converter in both Solar and Wind Power Systems. Battery Bank is used to store excess power from Renewable Energy Sources (RES) and to provide continuous power to load when the RES power is less than load power. A SPWM inverter is designed to convert DC power into AC to supply three phase load. An LC filter is also used at the output of inverter to get sinusoidal current from the PWM inverter. The entire system was modeled and simulated in Matlab/Simulink Environment. The results presented show the validation of the HPS design.

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Authors and Affiliations

T. Bogaraj

J. Kanakaraj

J. Chelladurai

Design of thermoelectric radiant cooling – photovoltaic panels system in the building

Israa Ali Abdulghafor Mohannad Jabbar Mnati

Archives of Thermodynamics | 2022 | vol. 43 | No 4 | 85-108 | DOI: 10.24425/ather.2022.144407

Keywords Thermoelectric panels cooling capacity Numerical calculations PV system

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Abstract

In this study, a theoretical model is presented to investigate the performance of a thermoelectric (TE) radiant cooling system combined with photovoltaic (PV) modules as a power supply in a building with an ambient temperature reaching more than 45ºC. The combined system TE/PV performance is studied under different solar radiation by using the hourly analysis program and photovoltaic system software. The thermal and electric characteristics of TE are theoretically investigated under various supplied voltages using the multi-paradigm programming language and numerical computing environment. Also, a theoretical analysis of heat transfer between the TE radiant cooling system and an occupied zone from the side, and the other side between the TE radiant cooling system and duct zone is presented. The maximum power consumption by TE panels and building cooling load of 130 kW is predicted for May and June. The 145 units of PV panels could provide about 50% of the power required by TE panels. The thermal and electric characteristics of TE panels results show the minimum cold surface temperature of 15ºC at a supplied voltage between 6 V and 7 V, and the maximum hot surface temperature of 62ºC at a supplied voltage of 16 V. The surface temperature difference between supplied current and supplied power increases as supplied voltage increases. At a higher supplied voltage of 16 V, the maximum surface temperature difference between supplied current, and supplied power of 150ºC, 3.2 A, and 48 W, respectively. The cooling capacity increases as supplied voltage increases, at a surface temperature difference of –10ºC and supplied voltage of 16 V, the maximum cooling capacity is founded at about 60 W. As supplied voltage decreases the coefficient of performance increases. The maximum coefficient of performance is about 5 at the surface temperature difference of –10ºC and supplied voltage of 8 V.

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Authors and Affiliations

Israa Ali Abdulghafor

1

Mohannad Jabbar Mnati

1

Middle Technical University, Institute of Technology Baghdad, Al-Za’franiya, 10074, Baghdad, Iraq

A specific yield comparison of 2 photovoltaic installations – Polish case study

Emilia Kazanecka Piotr Olczak

Polityka Energetyczna - Energy Policy Journal | 2023 | vol. 26 | No 4 | 129-148

Keywords energy prosumer photovoltaic PV specific yield

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Abstract

The energy sector, particularly that related to renewable energy, is growing rapidly. The analysis of factors influencing the production of electricity from solar radiation is important in terms of the ever-increasing number of photovoltaic (PV) installations. In Poland, the vast majority of installed PV capacity belongs to prosumers, so a comparative analysis was conducted for two domestic installations, one in southern Poland and the other located in central Poland. Operating conditions were compared, specifically with regard to irradiance, outdoor temperature and the calculated temperature of photovoltaic cells. The specific yield was then compared in daily, monthly and annual statements. The effects of the previously mentioned parameters on the energy yields of the two installations were considered. The installation in southern Poland in 2022 produced 5,136.6 kWh, which corresponds to a specific yield of 1,019.17 kWh/kWp, while the energy production of the installation in central Poland was 4,248.9 kWh, which corresponds to a specific yield of 965.67 kWh/kWp.

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Authors and Affiliations

Emilia Kazanecka

1

Piotr Olczak

2

e-mail:

ORCID:

Mineral and Energy Economy Research Institute, Polish Academy of Sciences; AGH University of Science andTechnology, Kraków, Poland
Mineral and Energy Economy Research Institute, Polish Academy of Sciences, Poland

Aesthetics and Efficiency in the Polish Architectural Spaces in the Aspect of Solar and Photovoltaic Installations

Bartosz Felski Grzegorz Pęczek

Studia KPZK | 2018 | tom 187 Piękno i energia: współczesny model budowania dzielnic mieszkaniowych w Europie | 284-293

Keywords Architectural aesthetics energy efficiency in architecture PV panels solar panel

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Abstract

Architecture is a discipline combining aesthetics with technology. This paper is focusing on the relationship between aesthetics and energy efficiency in architecture with special interest in solar collectors and photovoltaic panels as technological equipment of the buildings. The paper takes into consideration the present situation and architectural development in northern Poland, with some input basing on European experiences. The paper defi nes aesthetics and effi ciency in the field of architectural design as well as the use of public and urban spaces. Authors present also some case studies regarding the use of solar panels in selected architectural examples. The paper ends with summary and some conclusions including the need for further research in the field of architectural design, technology and product design, as well as the perception of urbanised spaces and the important field of economic and financial factors connected to the topic.

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Authors and Affiliations

Bartosz Felski

Grzegorz Pęczek

Prospecting of pathogen-derived elicitors for the control of tomato bacterial spot

Camila Tonelotti Simões Valdeir Nunes Carvalho Bernardo de Almeida Halfeld-Vieira

Journal of Plant Protection Research | 2021 | vol. 61 | No 2 | 183-188 | DOI: 10.24425/jppr.2021.137029

Keywords hypersensitivity response incompatibility phytopathogenic bacteria Xanthomonas euvesicatoria pv. perforans

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Abstract

Plants can recognize molecules derived from pathogens and trigger systemic acquired resistance (SAR). In phytopathogenic bacteria, elicitors are constituent components of cellular structures, such as flagellin. We sought to select structural components of Xanthomonas spp. incompatible with tomato, aiming to control bacterial spot ( Xanthomonas perforans). Initially, cell suspensions from 11 Xanthomonas spp. isolates were infiltrated into the leaves to assess their ability to cause a hypersensitivity response (HR) and the incompatible ones had their flagellin purified. The flagellin of the isolates were first applied at different concentrations, via infiltration and spraying. The pathogen, X. perforans, was inoculated after 24 h, to assess whether there would be any harmful reaction. No harmful reaction was observed in any treatment. Then, a second experiment was conducted to assess the severity of all isolates, at a concentration of 8.35 μg · ml–1, via spraying, infiltration, and soil. The greatest reduction in Area Under the Disease Progress Curve (AUDPC) was observed in the treatment with XapRR, applied via spraying. Thus, prospecting for elicitors is the first step in developing a product for agricultural use. The flagellin elicitor of XapRR is promising and capable of producing these molecules on a large scale.

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Authors and Affiliations

Camila Tonelotti Simões

1

e-mail:

ORCID:

Valdeir Nunes Carvalho

1

e-mail:

ORCID:

Bernardo de Almeida Halfeld-Vieira

2

e-mail:

ORCID:

Faculdade de Ciências Agronômicas, Universidade Estadual Paulita “Júlio de Mesquita Filho”, Botucatu, Brazil
Fitopatologia, Embrapa Meio Ambiente, Jaguariúna, São Paulo, Brazil

Comparison of three different techniques for eradication of Apple mosaic virus (ApMV) from hazelnut (Corylus avellana L.)

Ergun Kaya

Journal of Plant Protection Research | 2021 | vol. 61 | No 1 | 11-19 | DOI: 10.24425/jppr.2021.136275

Keywords cryotherapy droplet vitrification meristem culture PVS2 RT-PCR thermotherapy

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Abstract

Numerous plant species around the world suffer from the presence of viruses, which especially in economically important crops, cause irretrievable damage and/or extensive losses. Many biotechnological approaches have been developed, such as meristem culture, chemotherapy, thermotherapy or cryotherapy, to eliminate viruses from infected plants. These have been used alone or in combination. In this work, meristem culture, thermotherapy and cryotherapy were compared for Apple mosaic virus elimination from hazelnut local cultivar “Palaz”. The virus-free plant was also confirmed by reverse transcriptase polymerase chain reaction (RT-PCR) after each treatment and, the best results were obtained by cryotherapy. A one step freezing technique, droplet vitrification, was used for cryotherapy, and the best regeneration percentage was 52%. After cryotherapy, virus-free seedlings of hazelnut local cultivar “Palaz” were confirmed as being virus-free after three subcultured periods.

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Authors and Affiliations

Ergun Kaya

1

Molecular Biology and Genetics, Mugla Sitki Kocman University, Mugla, Turkey

Solar power and multi-battery for new configuration DC microgrid using centralized control

Adhi Kusmantoro Irna Farikhah

Archives of Electrical Engineering | 2023 | vol. 72 | No 4 | 931-950 | DOI: 10.24425/aee.2023.147419

Keywords centralized control DC microgrid multi-battery PV array

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Abstract

The abundant use of solar energy in Indonesia has the potential to become electrical energy in a microgrid system. Currently the use of renewable energy sources (RESs) in Indonesia is increasing in line with the reduction of fossil fuels. This paper proposes a new microgrid DC configuration and designs a centralized control strategy to manage the power flow from renewable energy sources and the load side. The proposed design uses three PV arrays (300 Wp PV module) with a multi-battery storage system (MBSS), storage (200 Ah battery). Centralized control in the study used an outseal programmable logic controller (PLC). In this study, the load on the microgrid is twenty housing, so that the use of electrical energy for one day is 146.360 Wh. It is estimated that in one month it takes 4.390.800 Wh of electrical energy. The new DC microgrid configuration uses a hybrid configuration, namely the DC coupling and AC coupling configurations.The results of the study show that the DC microgrid hybrid configuration with centralized control is able to alternately regulate the energy flow from the PV array and MBSS. The proposed system has an efficiency of 98% higher than the previous DC microgrid control strategy and configuration models.

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Authors and Affiliations

Adhi Kusmantoro

1

Irna Farikhah

2

Department of Electrical Engineering, Universitas PGRI Semarang Jl. Sidodadi Timur No. 24 – Dr. Cipto, Semarang 50125, Indonesia
Department of Mechanical Engineering, Universitas PGRI Semarang, Jl. Sidodadi Timur No. 24 – Dr. Cipto, Semarang 50125, Indonesia

Electricity supply to irrigation systems for crops away from urban areas

Zbigniew Skibko Wacław Romaniuk Andrzej Borusiewicz Stanisław Derehajło

Journal of Water and Land Development | 2022 | No 53 | 73-79 | DOI: 10.24425/jwld.2022.140782

Keywords irrigation system microgrid power supply solar photovoltaic (PV) solar water pumping system

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Abstract

Water scarcity is a phenomenon that is occurring more and more frequently in larger areas of Europe. As a result of drought, there are significant drops in yields. As demand for food continues to rise, it is becoming necessary to bring about a substantial increase in crop production. The best solution to water scarcity appears to be irrigation for crops that are particularly sensitive to drought. Today, many technical solutions are used to supply and distribute water to crops. The optimal solution is drip irrigation, which makes it possible to deliver water directly to the plant root system to save melting freshwater resources. In the article special attention was paid to methods of supplying electricity to power irrigation pumps. The analysis was made for areas with a significant distance between the agricultural land and the urbanised area (which has water and electricity). The authors have selected the parameters of an off-grid photovoltaic mini-hydropower plant with energy storage (with a power of 1.36 kW). An analysis was made of the profitability of such an investment and a comparison with other types of power supply. Based on the performed calculations, a prototype power supply system equipped with photovoltaic panels was made to show the real performance of the proposed system. The tests carried out showed that the irrigation pump will be powered most of the time with a voltage whose parameters will be very close to the nominal ones.

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Authors and Affiliations

Zbigniew Skibko

1

e-mail:

ORCID:

Wacław Romaniuk

2

e-mail:

ORCID:

Andrzej Borusiewicz

3

e-mail:

ORCID:

Stanisław Derehajło

3

e-mail:

ORCID:

Bialystok University of Technology, Faculty of Electrical Engineering, Wiejska 45 D, 15-351 Białystok, Poland
Institute of Technology and Life Sciences – National Research Insitute, Falenty, Poland
The Higher School of Agribusiness in Łomża, Poland

Monitoring of PV Inverters while Unintentional Islanding Using PMU

Szymon Henryk Barczentewicz Tomasz Lerch Andrzej Bień

International Journal of Electronics and Telecommunications | 2021 | vol. 67 | No 3 | 465-470 | DOI: 10.24425/ijet.2021.137835

Keywords electrical disturbances phasor measurement unit power quality PV inverters

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Abstract

Unintentional islanding detection is one the mandatory criterion that must be met by PV inverters before connecting them into the grid. Acceptable time for inverter for islanding detection is less than 2 seconds. In this paper voltage parameters after islanding occurrence and before turning off the inverter are analyzed. In order to simulate islanding state and perform measurements the testing system was build. Three different commercial PV inverters were tested. Measured signals were used to calculate voltage envelope, phasor, frequency and ROCOF. Collected data proved to be helpful to compere different inverters.

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Authors and Affiliations

Szymon Henryk Barczentewicz

1

Tomasz Lerch

1

e-mail:

ORCID:

Andrzej Bień

1

AGH University of Science and Technology, Poland

Colocalization pattern of cocaine- and amphetamine-regulated transcript peptide and parvalbumin immunoreactivity in the hippocampus proper of the chinchilla

R. Szalak M. Matysek W. Kukula-Koch K. Rycerz A. Zacharko-Siembida M.B. Arciszewski

Polish Journal of Veterinary Sciences | 2020 | vol. 23 | No 1 | 89-96 | DOI: 10.24425/pjvs.2020.132752

Keywords hippocampus dentate gyrus CART PV Ca2+ memory chinchilla

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Abstract

This study set out to investigate, for the first time, the distribution and colocalization pattern of cocaine-and amphetamine-regulated transcript (CART) and one of the calcium binding-proteins: parvalbumin (PV) in the chinchilla’s hippocampus proper (HP). HP, consisting of Ammon’s horn (CA) and the dentate gyrus (DG), is an important component of the limbic system, involved in learning and memory processes. CA showed a higher immunoreactivity of CART (-IR) compared to DG. CART-IR neurons were mainly observed in the molecular layer of DG and in the pyramidal layer of CA. CART-IR fibers were present in the granular layer; in the hilus numerous mossy fibers were detected, while in the molecular layer CART-IR fibers were not found. In all CA fields (CA1-CA3), CART-IR fibers were only present in the lacuno- sum-molecular layer. Immunofluorescence with double- labeling showed that only CART-IR cells stained positive for PV, whereas in CART-IR fibers there was no PV-positive reaction. Our research supplements missing knowledge about the distribution and colocalization pattern of CART with PV in the chinchilla’s hippocampus, and also provides a better understanding of the similarities and differences among individuals of the same species and also with other mammals.

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Authors and Affiliations

R. Szalak

M. Matysek

W. Kukula-Koch

K. Rycerz

A. Zacharko-Siembida

M.B. Arciszewski

Spider monkey optimization (SMO) – lattice Levenberg–Marquardt recursive least squares based grid synchronization control scheme for a three-phase PV system

Dipak Kumar Dash Pradip Kumar Sadhu Bidyadhar Subudhi

Archives of Control Sciences | 2021 | vol. 31 | No 3 | 707-730 | DOI: 10.24425/acs.2021.138698

Keywords solar PV array VSC SMO DC-DC converter lattice Levenberg–Marquardt recursive least squares hysteresis current controller

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Abstract

This paper presents a new grid integration control scheme that employs spider monkey optimization technique for maximum power point tracking and Lattice Levenberg Marquardt Recursive estimation with a hysteresis current controller for controlling voltage source inverter. This control scheme is applied to a PV system integrated to a three phase grid to achieve effective grid synchronization. To verify the efficacy of the proposed control scheme, simulations were performed. From the simulation results it is observed that the proposed controller provides excellent control performance such as reducing THD of the grid current to 1.75%.

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Authors and Affiliations

Dipak Kumar Dash

1

Pradip Kumar Sadhu

1

Bidyadhar Subudhi

2

Department of Electrical Engineering, Indian Institute of Technology (ISM), Dhanbad, India
School of Electrical Sciences, Indian Institute of Technology Goa, GEC Campus, Farmagudi, Ponda-401403, Goa, India

The EU’s demand for selected critical raw materials used in the photovoltaic industry

Katarzyna Guzik Anna Burkowicz Jarosław Szlugaj

Gospodarka Surowcami Mineralnymi - Mineral Resources Management | 2022 | vol. 38 | No 2 | 31-59 | DOI: 10.24425/gsm.2022.141666

Keywords critical raw materials (CRMs) renewable energy photovoltaic (PV) power sector raw materials demand

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Abstract

This paper presents the results of analyses of structure, volume and trends of demand for selected major critical raw materials (CRMs) suitable for the EU’s photovoltaic industry (PV). In order to achieve the EU’s goals in terms of the reduction of greenhouse gas emission and climate neutrality by 2050, the deployment of energy from renewable sources is of key importance. As a result, a substantial development of wind and solar technologies is expected. It is forecasted that increasing the production of PV panels will cause a significant growth in the demand for raw materials, including CRMs. Among these, silicon metal, gallium, germanium and indium were selected for detailed analyses while boron and phosphorus were excluded owing to small quantities being utilized in the PV sector. The estimated volume of the apparent consumption in the EU does not usually exceed 0.1 million tonnes for high purity silicon metal, a hundred tonnes for gallium and indium and several dozen tonnes for germanium. The major net-importers of analyzed CRMs were Germany, France, Spain, Czech Republic, the Netherlands, Slovakia and Italy. The largest quantities of these metals have been utilized by Germany, France, Belgium, Slovakia and Italy. The PV applications constitute a marginal share in the total volume of analyzed metal total end-uses in the EU (10% for silicon metal, 5% for gallium, 13% for germanium and 9% for indium). As a result, there is a number of applications that compete for the same raw materials, particularly including the production of electronic equipment. The volume of the future demand for individual CRMs in PV sector will be strictly related to trends in the development of PV-panel production with crystalline silicon technology currently strongly dominating the global market.

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Authors and Affiliations

Katarzyna Guzik

1

e-mail:

ORCID:

Anna Burkowicz

1

e-mail:

ORCID:

Jarosław Szlugaj

1

e-mail:

ORCID:

Mineral and Energy Economy Research Institute, Polish Academy of Sciences, Kraków, Poland

Parameter estimation of photovoltaic module relied on golden jackal optimization

Thuan Thanh Nguyen

Archives of Electrical Engineering | 2023 | vol. 72 | No 4 | 987-1003 | DOI: 10.24425/aee.2023.147422

Keywords golden jackal optimization henry gas solubility optimization particle swarm optimization PV parameter estimation single diode model

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Abstract

Due to the nonlinear current-voltage (I-V) relationship of the photovoltaic (PV) module, building a precise mathematical model of the PV module is necessary for evaluating and optimizing the PV systems. This paper proposes a method of building PV parameter estimation models based on golden jackal optimization (GJO). GJO is a recently developed algorithm inspired by the idea of the hunting behavior of golden jackals. The explored and exploited searching strategies of GJO are built based on searching for prey as well as harassing and grabbing prey of golden jackals. The performance of GJO is considered on the commercial KC200GT module under various levels of irradiance and temperature. Its performance is compared to well-known particle swarm optimization (PSO), recent Henry gas solubility optimization (HGSO) and some previous methods. The obtained results show that GJO can estimate unknown PV parameters with high precision. Furthermore, GJO can also provide better efficiency than PSO and HGSO in terms of statistical results over several runs. Thus, GJO can be a reliable algorithm for the PV parameter estimation problem under different environmental conditions.

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Authors and Affiliations

Thuan Thanh Nguyen

1

e-mail:

ORCID:

Faculty of Electrical Engineering Technology, Industrial University of Ho Chi Minh City, No. 12 Nguyen Van Bao, Ward 4, Go Vap District, Ho Chi Minh City, Vietnam

Improvement of damping characteristics and index evaluation of a wind-PV-thermal-bundled power transmission system by combining PSS and SSSC

Ping He Xinxin Wu Congshan Li Mingming Zheng Zhao Li

Archives of Electrical Engineering | 2020 | vol. 69 | No 3 | 705-721 | DOI: 10.24425/aee.2020.133927

Keywords damping characteristics eigenvalue analysis power system stabilizer wind- PV-thermal-bundled power system

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Abstract

The grid integration of large-scale wind and solar energy affects the power flow of wind-PV-thermal-bundled power transmission systems and may introduce an unpredicted threat to the power system’s small signal stability. Meanwhile, a power system stabilizer (PSS) and static synchronous series compensator (SSSC) play an important role in improving the static and dynamic stability of the system. Based on this scenario and in view of the actual engineering requirements, the framework of wind-PV-thermal-bundled power transmitted by an AC/DC system with the PSS and SSSC is established considering the fluctuation of wind and photovoltaic power output and the characteristics of the PSS and SSSC. Afterwards, the situation model is constructed in the IEEE 2-area 4-unit system, and the influence of the PSS and SSSC on the system stability under different operating conditions is analyzed in detail through eigenvalue analysis and time-domain simulation. Finally, an index named the gain rate is defined to describe the improvement of the stability limitations of various wind-PV-thermal operating conditions with the PSS and SSSC. The results indicate (K) that the damping characteristics, dynamic stability and stability limitations for various wind-PV-thermal operating conditions of the wind-PV-thermal-bundled power transmission system can be significantly improved by the interaction of the PSS and SSSC.

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Authors and Affiliations

Ping He

e-mail:

ORCID:

Xinxin Wu

Congshan Li

e-mail:

ORCID:

Mingming Zheng

Zhao Li

e-mail:

ORCID:

Study of an open-switch fault detection algorithm for a three-phase interleaved DC–DC boost converter in a photovoltaic system

Bilal Boudjellal Tarak Benslimane

Archives of Electrical Engineering | 2023 | vol. 72 | No 3 | 661 –676 | DOI: 10.24425/aee.2023.146043

Keywords DC–DC converters fault diagnosis interleaved boost converter open switch fault photovoltaic (PV) system

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Abstract

This paper presents a novel fault detection algorithm for a three-phase interleaved DC–DC boost converter integrated in a photovoltaic system. Interleaved DC–DC converters have been used widely due to their advantages in terms of efficiency, ripple reductions, modularity and small filter components. The fault detection algorithm depends on the input current waveform as a fault indicator and does not require any additional sensors in the system. To guarantee service continuity, a fault tolerant topology is achieved by connecting a redundant switch to the interleaved converter. The proposed fault detection algorithm is validated under different scenarios by the obtained results.

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Authors and Affiliations

Bilal Boudjellal

1

e-mail:

ORCID:

Tarak Benslimane

1

e-mail:

ORCID:

Laboratory of Electrical Engineering, University of M’sila, Seat of the wilaya of M’sila, M’sila 28000, Algeria

Economic dispatch in power system networks including renewable energy resources using various optimization techniques

Abrar Mohamed Hafiz M. Ezzat Abdelrahman Hesham Temraz

Archives of Electrical Engineering | 2021 | vol. 70 | No 3 | 643-655 | DOI: 10.24425/aee.2021.137579

Keywords Economic Dispatch (ED) particle swarm optimization (PSO) Sine-Cosine Algorithm (SCA) photovoltaic (PV)

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Abstract

Economic dispatch (ED) is an essential part of any power system network. ED is howto schedule the real power outputs from the available generators to get the minimum cost while satisfying all constraints of the network. Moreover, it may be explained as allocating generation among the committed units with the most effective minimum way in accordance with all constraints of the system. There are many traditional methods for solving ED, e.g., Newton-Raphson method Lambda-Iterative technique, Gaussian-Seidel method, etc. All these traditional methods need the generators’ incremental fuel cost curves to be increasing linearly. But practically the input-output characteristics of a generator are highly non-linear. This causes a challenging non-convex optimization problem. Recent techniques like genetic algorithms, artificial intelligence, dynamic programming and particle swarm optimization solve nonconvex optimization problems in a powerful way and obtain a rapid and near global optimum solution. In addition, renewable energy resources as wind and solar are a promising option due to the environmental concerns as the fossil fuels reserves are being consumed and fuel price increases rapidly and emissions are getting higher. Therefore, the world tends to replace the old power stations into renewable ones or hybrid stations. In this paper, it is attempted to enhance the operation of electrical power system networks via economic dispatch. An ED problem is solved using various techniques, e.g., Particle Swarm Optimization (PSO) technique and Sine-Cosine Algorithm (SCA). Afterwards, the results are compared. Moreover, case studies are executed using a photovoltaic-based distributed generator with constant penetration level on the IEEE 14 bus system and results are observed. All the analyses are performed on MATLAB software.

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Authors and Affiliations

Abrar Mohamed Hafiz

1

e-mail:

ORCID:

M. Ezzat Abdelrahman

1

Hesham Temraz

1

Electrical Power and Machines Department, Faculty of Engineering, Ain Shams University, Egypt

Maximum power point tracking techniques for low-cost solar photovoltaic applications – Part II: Mathematical Calculation and Measurement and Comparison, criteria on choices and suitable MPPT techniques

Tole Sutikno Arsyad Cahya Subrata Giovanni Pau Awang Jusoh Kashif Ishaque

Archives of Electrical Engineering | 2023 | vol. 72 | No 2 | 299-322 | DOI: 10.24425/aee.2023.145410

Keywords incremental conductance maximum power point tracking measurement and comparison perturb and observe solar photovoltaic (PV) trial-and-error

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Abstract

In the last decade, there has been a substantial surge in the advancement of research into the maximum power point tracking (MPPT) controller. The MPPT approaches, on the other hand, continue to be in high demand due to the ease and simplicity with which tracking techniques can be implemented on the maximum power point (MPP). Diverse MPPT approaches and their modifications from various literature are categorized and thoroughly explored in this work, which is divided into two sections. The discussions are centered on the primary goal of attaining the most extraordinary feasible MPPT technique that produces the best results at the lowest possible expense. In order to determine which MPPT approaches to use, evaluations from earlier literature are used to guide the decision. In this section, we will examine the evaluation of the MPPT technique in two sections. Previously, in Part I, we explored the MPPT techniques based on constant parameters and trial-and- error. Part II of this article will examine the MPPT technique, which is based on mathematical computation, measurement, and comparison, and the algorithm development that has occurred in recent years. Furthermore, this section’s assessment for selecting MPPT approaches is based on previous literature reviews. To aid with this selection, the following criteria for the MPPT approach are proposed: sensors and analog/digital requirements, costeffectiveness, simplicity, stability, efficiency, and tracking speed. This enables the reader to select the MPPT technique that is most appropriate for their application.

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Authors and Affiliations

Tole Sutikno

1

e-mail:

ORCID:

Arsyad Cahya Subrata

1

e-mail:

ORCID:

Giovanni Pau

2

e-mail:

ORCID:

Awang Jusoh

3

e-mail:

ORCID:

Kashif Ishaque

4

e-mail:

ORCID:

Department of Electrical Engineering, Universitas Ahmad Dahlan Yogyakarta, Indonesia
Faculty of Engineering and Architecture, Kore University of Enna, Italy
School of Electrical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
Capital University of Science & Technology, Islamabad, Pakistan

Maximum power point tracking techniques for low-cost solar photovoltaic applications – Part I: constant parameters and trial-and-error

Tole Sutikno Arsyad Cahya Subrata Giovanni Pau Awang Jusoh Kashif Ishaque

Archives of Electrical Engineering | 2023 | vol. 72 | No 1 | 125-145 | DOI: 10.24425/aee.2023.143693

Keywords incremental conductance maximum power point tracking measurement and comparison perturb and observe solar photovoltaic (PV) trial-and-error

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Abstract

The development of research on the maximum power point tracking (MPPT) controller has increased significantly in this decade. The MPPT technique, however, is still demanding because of the ease and simplicity of implementing tracking technique on the maximum power point (MPP). In this paper, MPPT techniques and their modifications from various literature are classified and examined in detail. The discussions are focused on the main objective of obtaining the best possible MPPT technique with the best results at a low cost. The assessment for the selection of MPPT techniques is based on assessments from the previous literature. The discussion of the MPPT technique assessment is divided into two parts. In Part I, the MPPT technique based on constant parameters, and trial-and-error will be discussed in detail, along with its algorithm development in recent times.

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Authors and Affiliations

Tole Sutikno

1

e-mail:

ORCID:

Arsyad Cahya Subrata

1

e-mail:

ORCID:

Giovanni Pau

2

e-mail:

ORCID:

Awang Jusoh

3

e-mail:

ORCID:

Kashif Ishaque

4

e-mail:

ORCID:

Department of Electrical Engineering, Universitas Ahmad Dahlan, Yogyakarta, Indonesia
Faculty of Engineering and Architecture, Kore University of Enna, Italy
School of Electrical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
Capital University of Science and Technology, Islamabad, Pakistan

Intermittent power smoothing control for grid connected hybrid wind/PV system using battery-EDLC storage devices

N.S. Jayalakshmi D.N. Gaonkar R.P. Karthik P. Prasanna

Archives of Electrical Engineering | 2020 | vol. 69 | No 2 | 433-453 | DOI: 10.24425/aee.2020.133036

Keywords energy storage devices inverter controller MPPT controller power smoothing PV system wind power

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Abstract

Wind and solar radiation are intermittent with stochastic fluctuations, which can influence the stability of operation of the hybrid system in the grid integrated mode of operation. In this research work, a smoothing control method for mitigating output power variations for a grid integrated wind/PV hybrid system using a battery and electric double layer capacitor (EDLC) is investigated. The power fluctuations of the hybrid system are absorbed by a battery and EDLC during wide variations in power generated from the solar and wind system, subsequently, the power supplied to the grid is smoothened. This makes higher penetration and incorporation of renewable energy resources to the utility system possible. The control strategy of the inverter is realized to inject the power to the utility system with the unity power factor and a constant DC bus voltage. Both photovoltaic (PV) and wind systems are controlled for extracting maximum output power. In order to observe the performance of the hybrid system under practical situations in smoothing the output power fluctuations, one-day practical site wind velocity and irradiation data are considered. The dynamic modeling and effectiveness of this control method

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Authors and Affiliations

N.S. Jayalakshmi

D.N. Gaonkar

R.P. Karthik

P. Prasanna

A control topology for frequency regulation capability in a grid integrated PV system

Ritesh Kumar Balakrushna Sahu Chandan Kumar Shiva B. Rajender

Archives of Electrical Engineering | 2020 | vol. 69 | No 2 | 389-401 | DOI: 10.24425/aee.2020.133033

Keywords frequency controller maximum power point tracking (MPPT) photovoltaic (PV) power system pseudo maximum power point tracking (PMPPT)

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Abstract

Photovoltaic (PV) cells are very costly because of the silicon element which is not cheaply available. Usually, PV cells are preferred to be used at maximum efficiency. Therefore, PV plants are emphasized to extract maximum power from PVcells. When inertia free PV plants are integrated into the grid in large numbers, the problem of maintaining system stability subjected to load perturbation is quite difficult. In response to this, a control topology is being an approach to make available the PV cells in maintaining system stability by utilizing the system frequency deviation as feedback to the controller. To implement this, the PVs are operated at Maximum Power Point Tracking (MPPT). This allows the PV to operate at Pseudo Maximum Power Point tracking (PMPPT) which makes it possible to run the PV with reserve power capacity without employing a battery for storage. The control strategy has been implemented over a two-stage power conversion model of the PV system. The simulation results showed that the proposed control PMPPT topology is effective in frequency regulation capability as compared to the MPPT technique.

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Authors and Affiliations

Ritesh Kumar

Balakrushna Sahu

Chandan Kumar Shiva

B. Rajender

Modelling and simulation of sinusoidal pulse width modulation controller for solar photovoltaic inverter to minimize the switching losses and improving the system efficiency

Sivaraj Panneerselvam Karunanithi Kandasamy Chandrasekar Perumal

Archives of Electrical Engineering | 2022 | vol. 71 | No 3 | 615-626 | DOI: 10.24425/aee.2022.141674

Keywords efficiency IGBT MOSFET PV inverter MATLAB/Simulink SPWM controller switching loss

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Abstract

With the extinction of fossil fuels and high increase in power demand, the necessity for renewable energy power generation has increased globally. Solar PV is one such renewable energy power generation, widely used these days in the power sector. The inverters used for power conversion suffer from power losses in the switching elements. This paper aims at the detailed analysis on switching losses in these inverters and also aims at increasing the efficiency of the inverter by reducing losses. Losses in these power electronic switches vary with their types. In this analysis the most widely used semiconductor switches like the insulated gate bipolar transistor (IGBT) and metal oxide semiconductor field effect transistor (MOSFET) are compared. Also using the sinusoidal pulse width modulation (SPWM) technique, improves the system efficiency considerably. Two SPWM-based singlephase inverters with the IGBT and MOSFET are designed and simulated in a MATLAB Simulink environment. The voltage drop and, thereby, the power loss across the switches are compared and analysed. The proposed technique shows that the SPWM inverter with the IGBT has lower power loss than the SPWM inverter with the MOSFET.

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Authors and Affiliations

Sivaraj Panneerselvam

1

e-mail:

ORCID:

Karunanithi Kandasamy

1

e-mail:

ORCID:

Chandrasekar Perumal

1

e-mail:

ORCID:

Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Tamil Nadu, India

Polymer substrates for flexible photovoltaic cells application in personal electronic systems

K. Znajdek Maciej Sibiński A. Strąkowska Z. Lisik

Opto-Electronics Review | 2016 | vol. 24 | No 1 | 20-24

Keywords solar cells flexible substrates polymer materials flexible photovoltaics (PV) flexible electronics

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Abstract

The article presents an overview of polymeric materials for flexible substrates in photovoltaic (PV) structures that could be used as power supply in the personal electronic systems. Four types of polymers have been elected for testing. The first two are the most specialized and heat resistant polyimide films. The third material is transparent polyethylene terephthalate film from the group of polyesters which was proposed as a cheap and commercially available substrate for the technology of photovoltaic cells in a superstrate configuration. The last selected polymeric material is a polysiloxane, which meets the criteria of high elasticity, is temperature resistant and it is also characterized by relatively high transparency in the visible light range. For themost promising of these materials additional studies were performed in order to select those of them which represent the best optical, mechanical and temperature parameters according to their usage for flexible substrates in solar cells.

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Authors and Affiliations

K. Znajdek

Maciej Sibiński

e-mail:

ORCID:

A. Strąkowska

Z. Lisik

A Novel Intelligent Neural Network Techniques of UPQC with Integrated Solar PV System for Power Quality Enhancement

Ramesh Rudraram Sasi Chinnathambi Manikandan Mani

International Journal of Electronics and Telecommunications | 2023 | vol. 69 | No 3 | 605-613 | DOI: 10.24425/ijet.2023.146514

Keywords PV system Re-lift Luo DC-DC converter Cascaded ANN MPPT Adaptive PI controller CNN assisted dq theory

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Abstract

A Novel Intelligent control of a Unified Power Quality Conditioner (UPQC) coupled with Photovoltaic (PV) system is proposed in this work. The utilization of a Re-lift Luo converter in conjunction with a Cascaded Artificial Neural Network (ANN) Maximum Power Point Tracking (MPPT) method facilitates the optimization of power extraction from PV sources. UPQC is made up of a series and shunt Active Power Filter (APF), where the former compensates source side voltage quality issues and the latter compensates the load side current quality issues. The PV along with a series and shunt APFs of the UPQC are linked to a common dc-bus and for regulating a dc-bus voltage a fuzzy tuned Adaptive PI controller is employed. Moreover, a harmonics free reference current is generated with the aid of CNN assisted dq theory in case of the shunt APF. The results obtained from MATLAB simulation.

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Authors and Affiliations

Ramesh Rudraram

1

Sasi Chinnathambi

1

Manikandan Mani

2

Electrical Engineering Department, Annamalai University, Annamalainagar, India
Electrical and Electronics Engineering Department, Jyothishmathi Institute of Technology and Science, Karimnagr, Telangana, India

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